388 lines
12 KiB
Python
388 lines
12 KiB
Python
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"""
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PDF合并工具
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- 文件列表 + 拖拽排序
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- 添加/删除/上下移动
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- 一键合并
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"""
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import os
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import logging
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from pathlib import Path
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from PySide6.QtWidgets import (
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QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton,
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QFrame, QFileDialog, QMessageBox, QProgressBar,
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QListWidget, QListWidgetItem, QAbstractItemView
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)
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from PySide6.QtCore import Qt, QThread, Signal
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from PySide6.QtGui import QFont, QIcon
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from ui.workspace import BaseWorkspace, UploadArea
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try:
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import fitz
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HAS_PYMUPDF = True
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except ImportError:
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HAS_PYMUPDF = False
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class MergeWorker(QThread):
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"""合并工作线程"""
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progress = Signal(int, int)
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finished = Signal(str)
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error = Signal(str)
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def __init__(self, files: list, output_path: str):
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super().__init__()
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self.files = files
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self.output_path = output_path
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def run(self):
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try:
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merged = fitz.open()
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total = len(self.files)
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for i, file_path in enumerate(self.files):
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doc = fitz.open(file_path)
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merged.insert_pdf(doc)
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doc.close()
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self.progress.emit(i + 1, total)
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merged.save(self.output_path)
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merged.close()
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self.finished.emit(self.output_path)
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except Exception as e:
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logging.error(f"合并PDF失败: {e}")
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self.error.emit(str(e))
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class PDFFileItem(QWidget):
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"""PDF文件列表项"""
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remove_clicked = Signal(str) # file_path
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def __init__(self, file_path: str, parent=None):
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super().__init__(parent)
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self.file_path = file_path
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self.setup_ui()
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def setup_ui(self):
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layout = QHBoxLayout(self)
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layout.setContentsMargins(12, 8, 12, 8)
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layout.setSpacing(12)
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# 拖拽手柄
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handle = QLabel("⋮⋮")
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handle.setStyleSheet("color: #64748b; font-size: 16px;")
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handle.setCursor(Qt.CursorShape.OpenHandCursor)
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layout.addWidget(handle)
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# PDF图标
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icon = QLabel("📄")
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icon.setFont(QFont("Segoe UI Emoji", 16))
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layout.addWidget(icon)
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# 文件信息
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info_layout = QVBoxLayout()
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info_layout.setSpacing(2)
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name = QLabel(Path(self.file_path).name)
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name.setStyleSheet("color: #e2e8f0; font-size: 13px; font-weight: 500;")
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info_layout.addWidget(name)
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# 文件大小
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size = os.path.getsize(self.file_path)
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size_str = self.format_size(size)
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size_label = QLabel(size_str)
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size_label.setStyleSheet("color: #64748b; font-size: 11px;")
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info_layout.addWidget(size_label)
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layout.addLayout(info_layout, 1)
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# 删除按钮
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remove_btn = QPushButton("🗑")
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remove_btn.setFixedSize(32, 32)
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remove_btn.setStyleSheet("""
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QPushButton {
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background: transparent;
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border: none;
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border-radius: 4px;
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}
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QPushButton:hover {
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background: rgba(239, 68, 68, 0.2);
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}
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""")
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remove_btn.clicked.connect(lambda: self.remove_clicked.emit(self.file_path))
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layout.addWidget(remove_btn)
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@staticmethod
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def format_size(size: int) -> str:
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for unit in ['B', 'KB', 'MB', 'GB']:
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if size < 1024:
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return f"{size:.1f} {unit}"
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size /= 1024
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return f"{size:.1f} TB"
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class PDFMergePage(BaseWorkspace):
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"""PDF合并页面"""
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def __init__(self, parent=None):
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super().__init__(parent)
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self.files = []
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self.setup_merge_ui()
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def setup_merge_ui(self):
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"""设置合并UI"""
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self.history_btn.hide()
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# 上传区域
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self.upload_area = UploadArea("PDF文件 (*.pdf)")
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self.upload_area.files_dropped.connect(self.on_files_added)
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self.content_layout.addWidget(self.upload_area)
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# 文件列表区域
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list_frame = QFrame()
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list_frame.setObjectName("card")
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list_layout = QVBoxLayout(list_frame)
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list_layout.setContentsMargins(20, 20, 20, 20)
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list_layout.setSpacing(16)
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# 标题
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header = QHBoxLayout()
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title = QLabel("📑 待合并文件列表")
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title.setStyleSheet("color: white; font-weight: 600; font-size: 16px;")
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header.addWidget(title)
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header.addStretch()
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hint = QLabel("(可拖拽排序)")
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hint.setStyleSheet("color: #64748b; font-size: 12px;")
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header.addWidget(hint)
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list_layout.addLayout(header)
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# 文件列表
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self.file_list = QListWidget()
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self.file_list.setDragDropMode(QAbstractItemView.DragDropMode.InternalMove)
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self.file_list.setDefaultDropAction(Qt.DropAction.MoveAction)
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self.file_list.setMinimumHeight(250)
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self.file_list.setStyleSheet("""
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QListWidget {
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background: rgba(15, 23, 42, 0.5);
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border: 1px solid #334155;
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border-radius: 8px;
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}
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QListWidget::item {
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background: #1e293b;
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border: 1px solid #334155;
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border-radius: 8px;
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margin: 4px;
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padding: 4px;
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}
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QListWidget::item:hover {
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border-color: #fbbf24;
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}
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QListWidget::item:selected {
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background: rgba(251, 191, 36, 0.1);
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border-color: #fbbf24;
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}
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""")
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self.file_list.model().rowsMoved.connect(self.on_rows_moved)
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list_layout.addWidget(self.file_list)
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# 操作按钮
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btn_layout = QHBoxLayout()
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add_btn = QPushButton("➕ 添加文件")
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add_btn.setObjectName("secondary_btn")
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add_btn.clicked.connect(self.add_files)
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btn_layout.addWidget(add_btn)
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move_up_btn = QPushButton("⬆️ 上移")
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move_up_btn.setObjectName("secondary_btn")
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move_up_btn.clicked.connect(self.move_up)
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btn_layout.addWidget(move_up_btn)
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move_down_btn = QPushButton("⬇️ 下移")
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move_down_btn.setObjectName("secondary_btn")
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move_down_btn.clicked.connect(self.move_down)
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btn_layout.addWidget(move_down_btn)
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btn_layout.addStretch()
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clear_btn = QPushButton("🗑️ 清空列表")
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clear_btn.setObjectName("secondary_btn")
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clear_btn.clicked.connect(self.clear_files)
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btn_layout.addWidget(clear_btn)
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list_layout.addLayout(btn_layout)
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# 进度条
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self.progress_bar = QProgressBar()
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self.progress_bar.setVisible(False)
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list_layout.addWidget(self.progress_bar)
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# 合并按钮
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self.merge_btn = QPushButton("📑 合并为单个 PDF")
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self.merge_btn.setObjectName("primary_btn")
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self.merge_btn.setMinimumHeight(50)
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self.merge_btn.setFont(QFont("Microsoft YaHei", 13, QFont.Weight.Bold))
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self.merge_btn.clicked.connect(self.do_merge)
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list_layout.addWidget(self.merge_btn)
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self.content_layout.addWidget(list_frame, 1)
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def on_files_added(self, files: list):
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"""文件添加"""
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for file_path in files:
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if file_path.lower().endswith('.pdf') and file_path not in self.files:
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self.files.append(file_path)
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self.add_file_item(file_path)
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logging.info(f"添加了 {len(files)} 个PDF文件")
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def add_file_item(self, file_path: str):
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"""添加文件列表项"""
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item = QListWidgetItem()
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item.setData(Qt.ItemDataRole.UserRole, file_path)
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item.setSizeHint(QListWidgetItem().sizeHint())
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item.setSizeHint(item.sizeHint().expandedTo(QListWidgetItem().sizeHint()))
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widget = PDFFileItem(file_path)
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widget.remove_clicked.connect(self.remove_file)
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item.setSizeHint(widget.sizeHint())
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self.file_list.addItem(item)
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self.file_list.setItemWidget(item, widget)
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def remove_file(self, file_path: str):
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"""移除文件"""
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if file_path in self.files:
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self.files.remove(file_path)
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for i in range(self.file_list.count()):
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item = self.file_list.item(i)
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if item.data(Qt.ItemDataRole.UserRole) == file_path:
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self.file_list.takeItem(i)
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break
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def add_files(self):
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"""添加文件对话框"""
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files, _ = QFileDialog.getOpenFileNames(
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self, "选择PDF文件", "", "PDF文件 (*.pdf)"
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)
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if files:
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self.on_files_added(files)
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def move_up(self):
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"""上移"""
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row = self.file_list.currentRow()
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if row > 0:
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item = self.file_list.takeItem(row)
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self.file_list.insertItem(row - 1, item)
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self.file_list.setCurrentRow(row - 1)
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# 重新创建widget
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file_path = item.data(Qt.ItemDataRole.UserRole)
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widget = PDFFileItem(file_path)
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widget.remove_clicked.connect(self.remove_file)
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item.setSizeHint(widget.sizeHint())
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self.file_list.setItemWidget(item, widget)
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self.sync_files_order()
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def move_down(self):
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"""下移"""
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row = self.file_list.currentRow()
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if row < self.file_list.count() - 1:
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item = self.file_list.takeItem(row)
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self.file_list.insertItem(row + 1, item)
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self.file_list.setCurrentRow(row + 1)
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# 重新创建widget
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file_path = item.data(Qt.ItemDataRole.UserRole)
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widget = PDFFileItem(file_path)
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widget.remove_clicked.connect(self.remove_file)
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item.setSizeHint(widget.sizeHint())
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self.file_list.setItemWidget(item, widget)
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self.sync_files_order()
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def on_rows_moved(self):
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"""行移动后同步文件顺序"""
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self.sync_files_order()
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def sync_files_order(self):
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"""同步文件顺序"""
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self.files = []
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for i in range(self.file_list.count()):
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item = self.file_list.item(i)
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file_path = item.data(Qt.ItemDataRole.UserRole)
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if file_path:
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self.files.append(file_path)
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def clear_files(self):
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"""清空文件"""
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self.files.clear()
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self.file_list.clear()
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def do_merge(self):
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"""执行合并"""
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if not HAS_PYMUPDF:
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QMessageBox.critical(self, "错误", "PyMuPDF未安装,无法合并PDF")
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return
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if len(self.files) < 2:
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QMessageBox.warning(self, "提示", "请至少添加2个PDF文件")
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return
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# 同步顺序
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self.sync_files_order()
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# 选择保存路径
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save_path, _ = QFileDialog.getSaveFileName(
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self, "保存合并后的PDF", "merged.pdf", "PDF文件 (*.pdf)"
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)
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if not save_path:
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return
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# 开始合并
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self.merge_btn.setEnabled(False)
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self.progress_bar.setVisible(True)
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|
|
self.progress_bar.setValue(0)
|
|||
|
|
|
|||
|
|
self.worker = MergeWorker(self.files, save_path)
|
|||
|
|
self.worker.progress.connect(self.on_progress)
|
|||
|
|
self.worker.finished.connect(self.on_merge_finished)
|
|||
|
|
self.worker.error.connect(self.on_merge_error)
|
|||
|
|
self.worker.start()
|
|||
|
|
|
|||
|
|
logging.info(f"开始合并 {len(self.files)} 个PDF文件")
|
|||
|
|
|
|||
|
|
def on_progress(self, current: int, total: int):
|
|||
|
|
"""进度更新"""
|
|||
|
|
self.progress_bar.setValue(int(current / total * 100))
|
|||
|
|
|
|||
|
|
def on_merge_finished(self, output_path: str):
|
|||
|
|
"""合并完成"""
|
|||
|
|
self.merge_btn.setEnabled(True)
|
|||
|
|
self.progress_bar.setVisible(False)
|
|||
|
|
|
|||
|
|
QMessageBox.information(
|
|||
|
|
self, "成功",
|
|||
|
|
f"PDF合并完成!\n\n共合并 {len(self.files)} 个文件\n保存到: {output_path}"
|
|||
|
|
)
|
|||
|
|
logging.info(f"PDF合并完成: {output_path}")
|
|||
|
|
|
|||
|
|
def on_merge_error(self, error: str):
|
|||
|
|
"""合并错误"""
|
|||
|
|
self.merge_btn.setEnabled(True)
|
|||
|
|
self.progress_bar.setVisible(False)
|
|||
|
|
|
|||
|
|
QMessageBox.critical(self, "错误", f"合并失败:\n{error}")
|
|||
|
|
logging.error(f"PDF合并失败: {error}")
|
|||
|
|
|